Installing And Connecting Gas Lines - Honeywell G0062790 Installation Manuallines

5.4.1 NATURAL GAS PIPE SIZING
To properly use this chart, fi nd the kVA rating of the generator in the left column, and trace to the right. The number to the right is the maximum
length (measured in meters/feet) allowed for the pipe sizes on top. The pipe sizes are measured by inside diameter (ID) to include any fi ttings, valves
(must be full fl ow), elbows, tees or angles. Add .76 m (2.5 ft) per any bend, tee or angle in the pipe to the overall distance.
kVA 19/0.75
8 6.1/20
10 3.09/10
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For 5-7" of water column (9-13mm mercury)
5.4.2 LP VAPOR PIPE SIZING
To properly use this chart, fi nd the kVA rating of the generator in the left column, and trace to the right. The number to the right is the maximum
length (measured in meters/feet) allowed for the pipe sizes on top. The pipe sizes are measured by inside diameter (ID) to include any fi ttings, valves
(must be full fl ow), elbows, tees or angles. Add .76m (2.5 feet) per any bend, tee or angle in the pipe to the overall distance.
NOTE: Pipe sizes are using a second stage regulator.
NOTE: The minimum LP tank size is 250 gallons (946 L), unless unit calculations dictate use of a larger tank. Vertical tanks, which
are measured in pounds (or kilograms), will not usually meet the minimum tank size requirement. A 1050 lb (476 kg) vertical tank size
minimum is required.
5.4.3 GAS INSTALLATION SUMMARY
Gas pipe sizing is one of the most commonly made mistakes. A properly sized gas pipe is critical to the proper operation of the generator.
The generator inlet size has no bearing on the proper gas pipe size.
5.5 INSTALLING & CONNECTING GAS LINES
1. Both natural gas and LP Vapor are highly volatile substances, so strict adherence to all safety procedures, codes, standards and
regulations is essential.
Gas line connections should be made by a certified plumber familiar with local codes. Always use AGA-approved gas pipe and a quality
pipe sealant or joint compound. The flex fuel line should be plumbed parallel to the back of the generator.
Verify the capacity of the natural gas meter or the LP tank in regards to providing sufficient fuel for both the generator and other operating
appliances.
• Fuel Regulator installed per laws or regulator manufacturer's specifi cations
• AGA approved gas pipe
• Flexible fuel line
– Do not bend!!!
– Do not attach directly to generator
– Check all connections for leaks
• Sediment trap near generator (if applicable or required by code)
• Full fl ow rated shut-off near generator per local jurisdiction or code
Pipe Size (mm/in)
25/1 32/1.25 38/1.5
25.91/85 112.78/370 243.84/800
15.24/50 74.68/245 166.12/545
12.19/40 57.91/190 129.54/425
kVA 19/0.75
8 21.33/70
10 13.72/45
13 7.62/25
kVA 25 / 1
8 9.14 / 30
10 6.1 / 20
13 3.05 / 10
For pressures below 5" of water column (9mm mercury) down to 3.5" of water
column (7mm mercury)
Pipe Size (mm/in)
25/1 32/1.25
77.72/225 304.8/1000
51.82/170 210.31/690
39.62/130 164.59/540
Pipe Size (mm / in)
32 / 1.25 38 / 1.5
38.1 / 125 60.96 / 200
24.38 / 80 53.34 / 175
18.29 / 60 38.1 / 125
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